def signature_to_G2(signature):
return _signature_to_G2(signature)
from py_ecc.bls import G2ProofOfPossession as py_ecc_bls
from py_ecc.bls.g2_primatives import signature_to_G2 as _signature_to_G2
import milagro_bls_binding as milagro_bls # noqa: F401 for BLS switching option
# Flag to make BLS active or not. Used for testing, do not ignore BLS in production unless you know what you are doing.
bls_active = True
# To change bls implementation, default to PyECC for correctness. Milagro is a good faster alternative.
bls = py_ecc_bls
STUB_SIGNATURE = b'\x11' * 96
STUB_PUBKEY = b'\x22' * 48
G2_POINT_AT_INFINITY = b'\xc0' + b'\x00' * 95
STUB_COORDINATES = _signature_to_G2(G2_POINT_AT_INFINITY)
def use_milagro():
"""
Shortcut to use Milagro as BLS library
"""
global bls
bls = milagro_bls
def use_py_ecc():
"""
Shortcut to use Py-ecc as BLS library
"""
global bls
bls = py_ecc_bls
from py_ecc.bls import G2ProofOfPossession as py_ecc_bls
from py_ecc.bls.g2_primatives import signature_to_G2 as _signature_to_G2
import milagro_bls_binding as milagro_bls # noqa: F401 for BLS switching option
# Flag to make BLS active or not. Used for testing, do not ignore BLS in production unless you know what you are doing.
bls_active = True
# To change bls implementation, default to PyECC for correctness. Milagro is a good faster alternative.
bls = py_ecc_bls
STUB_SIGNATURE = b'\x11' * 96
STUB_PUBKEY = b'\x22' * 48
Z2_SIGNATURE = b'\xc0' + b'\x00' * 95
STUB_COORDINATES = _signature_to_G2(Z2_SIGNATURE)
def use_milagro():
"""
Shortcut to use Milagro as BLS library
"""
global bls
bls = milagro_bls
def use_py_ecc():
"""
Shortcut to use Py-ecc as BLS library
"""
global bls
bls = py_ecc_bls
from py_ecc.bls import G2ProofOfPossession as bls
from py_ecc.bls.g2_primatives import signature_to_G2 as _signature_to_G2
# Flag to make BLS active or not. Used for testing, do not ignore BLS in production unless you know what you are doing.
bls_active = True
STUB_SIGNATURE = b'\x11' * 96
STUB_PUBKEY = b'\x22' * 48
STUB_COORDINATES = _signature_to_G2(bls.Sign(0, b""))
def only_with_bls(alt_return=None):
"""
Decorator factory to make a function only run when BLS is active. Otherwise return the default.
"""
def runner(fn):
def entry(*args, **kw):
if bls_active:
return fn(*args, **kw)
else:
return alt_return
return entry
return runner
@only_with_bls(alt_return=True)
def Verify(PK, message, signature):
return bls.Verify(PK, message, signature)
@only_with_bls(alt_return=True)
